Question

我是python的新手。用python 3.6编写

您可以跳过ipRange部分

这是代码：

import socket

def ipRange(start_ip, end_ip):
   start = list(map(int, start_ip.split(".")))
   end = list(map(int, end_ip.split(".")))
   temp = start
   ip_range = []

   ip_range.append(start_ip)
   while temp != end:
      start[3] += 1
      for i in (3, 2, 1):
         if temp[i] == 256:
            temp[i] = 0
            temp[i-1] += 1
      ip_range.append(".".join(map(str, temp)))    

   return ip_range

ip_range = ipRange("192.168.0.101", "192.168.0.110")
#To this point everything is fine since it is not my code

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(5)
# if i add s.setblocking(1) it works, but it is really slow and not printing 
# out "timed out" error message

for ip in ip_range:
    try:
        con = s.connect((ip, 80))
        con.close()
    except Exception as msg:
        print(ip, msg)

我希望此代码仅打印出ip和异常msg“ ConnectionRefusedError”或套接字“ timed out”错误，但之后每隔一个msg异常是“提供了无效的参数”。

Shell：

192.168.0.101 [WinError 10061] No connection could be made because the 
target machine actively refused it                              #Good
192.168.0.102 [WinError 10061] No connection could be made because the target 
machine actively refused it                                     #Good
192.168.0.103 [WinError 10061] No connection could be made because the target 
machine actively refused it                                     #Good
192.168.0.104 timed out                                         #Good
192.168.0.105 [WinError 10022] An invalid argument was supplied #Not good
192.168.0.106 [WinError 10022] An invalid argument was supplied #
192.168.0.107 [WinError 10022] An invalid argument was supplied 
192.168.0.108 [WinError 10022] An invalid argument was supplied 
192.168.0.109 [WinError 10022] An invalid argument was supplied 
192.168.0.110 [WinError 10022] An invalid argument was supplied

一切都很好，直到“超时”消息为止。之后，我希望它再次为下一个IP打印“超时”味精或打印出“ ConnectionRefusedError”-这意味着设备已连接到LAN上的该IP。

稍后，我将尝试使此脚本打印出连接到lan的所有设备。

我希望你明白这一点。预先感谢。

套接字超时后提供了无效的参数

0 个答案: